Have you seen Memento? I kept thinking of the plot weeks after seeing it....

I like a lot the first two Godfathers, despite all the dialogues in Sicilian. Don't think that being Italian like me is of any help in understanding that movie, because Sicilian and Italian are pretty far as languages. I'd say more distant than Spanish and Italian.

Super Troopers....sooooo funny
another vote for Momento...very kewl movie
as well as virgin suicides
bend it like Beckham
the american president
Mystery, Alaska (great scenery if nothing else)
the Kill Bill movies
the LOTR movies

Real Genius (Val Kilmer's best work in my book)
Monster in a Box (Spaulding Gray's (RIP) best filmed work IMO)
Fear of a Black Hat (the Spinal Tap of rap - but way funnier)
Monty Python and the Holy Grail (duh)
Europa Europa (so I don't look like a complete dunce

Spaghetti Westerns - start with "The Good, The Bad & The Ugly" trilogy and move onto "Once Upon a Time in the West" ... there are a thousand other good, bad and ugly that you can dip into after that

I second that.. and any films with Morricone scores. The gunfight in For A Few Dollars more is my favourite part of any film ever.

Can you recommend me any good Spaghetti Westerns other than the Leone ones?

You mean the long face to face to face to face to face cemetery scene? Yeah, that's awesome. I tried getting my wife into the genre, but she fell asleep just before "that best bit ... and damn well went and missed it" - Grrr. Ho hum! The opening scenes of "Once Upon a Time in the West" are just breath-taking.